"good-bye, take care of yourself we're out of here." >> well, both sides make the same argument to me in reverse. that the real problem, they say, is you haven't pressured the other side. >> rose: yeah, exactly. >> cut them off, tell them you won't help them anymore, you won't do anything, we'll walk away. i say, would you like us to do that to you? oh, no, but you should do it to the other side. the reality is that, yes, of course the united states has both carrots and sticks. you have to be very careful about how and when you use them. >> rose: when was the last time we used a stick? >> afghanistan. >> rose: oh, i know, but nobody's talking about the united states troops going in. they're not. i mean, give me an example. i'm serious about this. you sit there and you say to israel, look, if you don't do this... what? >> under american law, the united states can withhold support on loan guarantees to israel. president george w. bush did so. >> rose: exactly. >> on one occasion. >> rose: and his father.